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Digit Ratio (2D:4D) in Homosexual and Heterosexual Men from Austria

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Abstract

Neurohormonal theories of sexual orientation emphasize the organizational effects of testosterone on the developing brain. A recent suggestion, that the ratio of the length of the 2nd and 4th digits (2D:4D) is negatively correlated with prenatal testosterone, has led to a number of studies of 2D:4D in homosexual and heterosexual men and women. The results have been mixed. In comparison to heterosexual men, mean 2D:4D in gay men has been reported to be hypermasculinized (lower 2D:4D), hypomasculinized (higher 2D:4D), or to show no significant difference. Here, we report mean 2D:4D in Austrian homosexual and heterosexual men. We found no significant difference between means for homosexual and heterosexual 2D:4D, with values for both falling between 0.96 to 0.97. There are now 6 reports of 2D:4D in heterosexual and homosexual men. Considering Caucasian men, the studies from the United States show low heterosexual mean 2D:4D, and homosexual mean 2D:4D is higher or similar to that of heterosexuals. The European studies show high heterosexual mean 2D:4D, and comparisons with homosexuals reveal the latter to have lower or similar mean 2D:4D to that of heterosexuals. We discuss these results in relation to the suggestion that mean 2D:4D in heterosexual men differs across populations but mean 2D:4D in homosexuals shows less geographical variation (the “uniform mean hypothesis”). It is concluded that more data are required to clarify whether or not there is a 2D:4D effect for sexual orientation in men.

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References

  • Austin, E. J., Manning, J. T., McInroy, K., & Mathews, E. (2002). A preliminary investigation of the associations between personality, cognitive ability and digit ratio. Personality and Individual Differences, 33, 1115–1124.

    Google Scholar 

  • Bailey, A. A., & Hurd, P. L. (2005). Finger length ratio (2D:4D) correlates with physical aggression in men but not in women. Biological Psychology, 68, 215–222.

    Google Scholar 

  • Bogaert, A. F., & Blanchard, R. (1996). Physical development and sexual orientation in men: Height, weight and age of puberty differences. Personality and Individual Differences, 21, 77–84.

    Google Scholar 

  • Bogaert, A. F., & Hershberger, S. (1999). The relation between sexual orientation and penile size. Archives of Sexual Behavior, 28, 213–221.

    Google Scholar 

  • Brown, W. M., Hines, M., Fane, B. A., & Breedlove, S. M. (2002). Masculinized finger length patterns in human males and females with congenital adrenal hyperplasia. Hormones and Behavior, 42, 380–386.

    Google Scholar 

  • Buck, J. J., Williams, R. M., Hughes, I. A., & Acermini, C. L. (2003). In-utero androgen exposure and 2nd to 4th digit length ratio: Comparisons between healthy controls and females with classical congenital adrenal hyperplasia. Human Reproduction, 18, 976–979.

  • Clark, A. P. (2003). Self-perceived attractiveness and masculinization predict women’s sociosexuality. Evolution and Human Behavior, 25, 113–124.

    Google Scholar 

  • Fink, B., Manning, J. T., & Neave, N. (2004a). Second to fourth digit ratio and the ‘big five’ personality factors. Personality and Individual Differences, 37, 495–503.

    Google Scholar 

  • Fink, B., Manning, J. T., Neave, N., & Tan, U. (2004b). Second to fourth digit ratio and hand skill in Austrian children. Biological Psychology, 67, 375–384.

    Google Scholar 

  • Geschwind, N., & Galaburda, A. M. (1985). Cerebral lateralization: Biological mechanisms, associations and pathology: I. A hypothesis and a program for research. Archives of Neurology, 42, 428–459.

    Google Scholar 

  • Lippa, R. (2003). Are 2D:4D finger-length ratios related to sexual orientation? Yes for men, no for women. Journal of Personality and Social Psychology, 85, 179–188.

    Google Scholar 

  • Lutchmaya, S., Baron-Cohen, S., Raggatt, P., Knickmeyer, R., & Manning, J. T. (2004). 2nd to 4th digit ratios, fetal testosterone and estradiol. Early Human Development, 77, 23–28.

    Google Scholar 

  • Manning, J. T. (2002). Digit ratio: A pointer to fertility, behavior and health. New Brunswick, NJ: Rutgers University Press.

    Google Scholar 

  • Manning, J. T., Barley, L., Lewis-Jones, I., Walton, J., Trivers, R. L., Thornhill, R., et al. (2000). The 2nd to 4th digit ratio, sexual dimorphism, population differences and reproductive success: Evidence for sexually antagonistic genes. Evolution and Human Behavior, 21, 163–183.

    Google Scholar 

  • Manning, J. T., Baron-Cohen, S., Wheelwright, S., & Sanders, G. (2001). The 2nd to 4th digit ratio and autism. Developmental Medicine and Child Neurology, 43, 160–164.

    Google Scholar 

  • Manning, J. T., Bundred, P. E., Newton, D. J., & Flanagan, B. F. (2003). The second to fourth digit ratio and variation in the androgen receptor gene. Evolution and Human Behavior, 24, 399–405.

    Google Scholar 

  • Manning, J. T., Fink, B., Neave, N., &; Caswell, N. (2005). Photocopies yield lower digit ratios (2D:4D) than direct finger measurements. Archives of Sexual Behavior, 34, 329–333 .

    Google Scholar 

  • Manning, J. T., Henzi, P., Venkatramana, P., Martin, S., & Singh, D. (2003). Second to fourth digit ratio: Ethnic differences and family size in English, Indian and South African populations. Annals of Human Biology, 30, 579–588.

    Google Scholar 

  • Manning, J. T., & Robinson, S. J. (2003). 2nd to 4th digit ratio and a universal mean for prenatal testosterone in homosexual men. Medical Hypotheses, 61, 303–306.

    Google Scholar 

  • Manning, J. T., Scutt, D., Wilson, J., & Lewis-Jones, D. I. (1998). The ratio of 2nd to 4th digit length: A predictor of sperm numbers and concentrations of testosterone, luteinizing hormone and oestrogen. Human Reproduction, 13, 3000–3003.

    Google Scholar 

  • Manning, J. T., Trivers, R. L., Singh, D., & Thornhill, R. (1999). The mystery of female beauty. Nature, 399, 214–215.

    Google Scholar 

  • Manning, J. T., Trivers, R. L., Thornhill, R., & Singh, D. (2000). The 2nd:4th digit ratio and asymmetry of hand performance in Jamaican children. Laterality, 5, 121-132.

    Google Scholar 

  • Martin, J. T., & Nguyen, D. H. (2004). Anthropometric analysis of homosexuals and heterosexuals: Implications for early hormone exposure. Hormones and Behavior, 45, 31–39.

    Google Scholar 

  • McFadden, D., Loehlin, J. C., Breedlove, S. M., Lippa, R. A., Manning, J. T., & Rahman, Q. (2005). A reanalysis of five studies on sexual orientation and the relative length of the 2nd and 4th fingers (the 2D:4D ratio). Archives of Sexual Behavior, 34, 341–356 .

    Google Scholar 

  • McFadden, D., & Shubel, E. (2002). Relative lengths of fingers and toes in human males and females. Hormones and Behavior, 42, 492–500.

    Google Scholar 

  • Migeon, C. J., & Wisniewski, A. B. (1998). Sexual differentiation: From genes to gender. Hormone Research, 50, 245–251.

    Google Scholar 

  • Ökten, A., Kalyoncu, M., & Yaris, N. (2002). The ratio of second- and fourth-digit lengths and congenital adrenal hyperplasia due to 21-hydroxylase deficiency. Early Human Development, 70, 47–54.

    Google Scholar 

  • Rahman, Q., & Wilson, G. D. (2003). Sexual orientation and the 2nd to 4th finger length ratio: Evidence for organizing effects of sex hormones or developmental instability? Psychoneuroendocrinology, 28, 288–303.

    Google Scholar 

  • Robinson, S. J., & Manning, J. T. (2000). The ratio of 2nd to 4th digit length and male homosexuality. Evolution and Human Behavior, 21, 333–345.

    Google Scholar 

  • Williams, J. H. J., Greenhalgh, K. D., & Manning, J. T. (2003). Second to fourth digit ratio and possible precursors of developmental psychopathology in preschool children. Early Human Development, 72, 57–65.

    Google Scholar 

  • Williams, T. J., Pepitone, M. E., Christensen, S. E., Cooke, B. M., Huberman, A. D., Breedlove, N. J., et al. (2000). Finger-length ratios and sexual orientation. Nature, 404, 455–456.

    Google Scholar 

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Correspondence to John T. Manning Ph.D..

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Voracek, M., Manning, J.T. & Ponocny, I. Digit Ratio (2D:4D) in Homosexual and Heterosexual Men from Austria. Arch Sex Behav 34, 335–340 (2005). https://doi.org/10.1007/s10508-005-3122-x

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  • DOI: https://doi.org/10.1007/s10508-005-3122-x

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